multi-arch bridge

multi-arch是什么意思_multi... ... multi-arch dam1. 连拱坝 multi-arch bridge1. 连拱桥 multi-centered arch1. 多心拱 ...

上跨石拱... ... ) long-span stone arch bridge 大跨径石拱桥 ) Multi-arch bridge 多跨拱桥 ) Long span arch bridges 大跨拱桥 ...